There's a certain cultural subset which tries to bolster their self-assessed superiority by rejecting things which are popular. This is especially common for people coming of a certain academic bent who are constantly playing one-upmanship games desperately trying to be the smartest person in the room.

Python annoys those people because it's both relatively easy to get started with and far, far more successful than whatever their current favorite language is, and this is portrayed as people not getting it rather than having a more insightful discussion about whether other people might reasonably make decisions based on different needs, background, and resources rather than stupidity.